2012 in review

The WordPress.com stats helper monkeys prepared a 2012 annual report for Default Reasoning! Here’s an excerpt: About 55,000 tourists visit Liechtenstein every year. This blog was viewed about 220,000 times in 2012. If it were Liechtenstein, it would take about 4 years for that many people to see it. Your blog had more visits than a small country in Europe! Click here to see the complete report. Thanks all for visit and your comments! Have […]

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ESXCLI Basics: Setup SNMP on ESXi 5.x

This is really basics stuff, but here is a quick how to. Connect to your host through SSH or open the DCUI. Setup the target SNMP server, port and community string: # esxcli system snmp set –t <ip_or_fqdn>@/<community_string> Enable SNMP: # esxcli system snmp set –e yes Logout. Done! 🙂 Verify the snmpd service is running and check if the ports are open on the host though vSphere Client or vSphere Web Client. Please note […]

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ESXCLI Basics: Troubleshooting Management Network Connection on ESXi 5.x

Another quick post about ESXCLI basics. Here is a procedure how to quickly recover the Management Network functionality on your ESXi host. First, login through iLO or iDRAC or iRMC, whatever remote management solution your server is equipped with. Press F2 on Direct Console UI, provide the root password and enable ESXi Shell via Troubleshooting Options. Press ALT+F1 and log in. List vmkernel interfaces: # esxcli network ip interface list Remove vmkernel interface(s): # esxcli […]

unhide recovery partition

ESXCLI Basics: Installing a custom CIM provider on ESXi 5.x

A quick blog post on how to install a custom CIM provider on an ESXi 5.x host. Command reference can be found here. In this example I will use an Emulex vib CIM provider for ESXi which is necessary if you using Emulex OneCommand vCenter plug-in in your environment. Install custom CIM provider First, enable SSH on the host. Upload the vib to the tmp directory on the ESXi host. Login to host via SSH […]


New Veeam Backup Management Suite 6.5

Veeam is introducing  New Veeam Backup Management Suite 6.5 for even more proficient data protection and virtualization management! Let’s take a look at some key features. Comprehensive data protection and virtualization management Veeam Backup Management Suite is a powerful, easy-to-use and affordable solution for VMware and Hyper-V environments of all sizes. Combining Veeam Backup & Replication and Veeam ONE in a single integrated solution, Veeam Backup Management Suite protects your investment in virtualization, increases administrator productivity […]


Calculating Percentage of Cluster Resources Admission Control Policy for an unbalanced vSphere 5.x cluster

I’ve been working lately on a project for one of our customers and one of the requirements was to reuse as much hardware as possible. This led of course to a HA/DRS cluster configuration with hosts with different memory and CPU sizes. As you probably all know this will lead to an unbalanced cluster. I’ve done some research about unbalanced clusters but beside the VMware vSphere 5.1 Clustering Deepdive by Duncan Epping and Frank Denneman there wasn’t much info […]

Site Recovery Manager

Upgrading VMware vCenter Site Recovery Manager from 5.0 to 5.1

A little while ago VMware released vCenter Site Recovery Manager 5.1 together with other products and vCloud Suite. Here is a quick summary of “What’s new in SRM 5.1” and the new improvements. SRM 5.1 supports reprotect and failback with vSphere Replication. Previously, you could only perform reprotect and failback on array-based protection groups. In SRM 5.1 you can perform reprotect and failback on vSphere Replication protection groups. The SRM Server in SRM 5.1 is […]


Free NFR License from Veeam!

Another great news from our friends at Veeam! If you are a VMware vExpert, VMware Certified Professional (VCP) or VMware Certified Instructor (VCI), you can get a FREE 2-socket NFR license for Veeam Backup & Replication v6 for your home or work lab. Head over to Veeam website to learn more! Cheers! – Marek.Z